https://www.gamespot.com/articles/destiny-strongly-resembled-overwatch-early-in-its-/1100-6453116/

With Destiny 2's launch upon us, the release of Kotaku news editor Jason Schreier's new book, Blood, Sweat, and Pixels, has dived into the rocky development of the original game. Along with many other things, it reveals an early version of Destiny apparently shared a lot in common with what would become Blizzard's Overwatch.